In universities for nationalities, not all students are ethnic minorities, but the number of ethnic minority students is much larger than other universities. Therefore, most majors cannot recruit minority students.
In fact, colleges and universities generally have minority classes, only minority college students, and minority preparatory classes only recruit minority students. A few preparatory classes apply for volunteering in the corresponding first batch of volunteer stage. After enrollment, when the number of students is insufficient, the department that has not completed the enrollment plan will announce the second batch of voluntary applications and organize the second batch of voluntary applications to make up the exam.